Improvement in windmills



N-FYETERS. PNOTG-LITHOGRAFHER. WASHINGTON Dv csind effin.

EDVARD SAVORAL,

or New YORK, N; Y.

Letters Patent No.110,683, dated January 3, 1871; antedated December 31, 1870.

IMPnovEMi-:NT m wlNDMlLLs.

The Schedule referred to in these Lettersv Patent and :making parl: of the same.

- To all whom. 'it may concern:

to the accompanying drawing forming part of this specification, and in whichf- Figure 1 represents a vertical central section of a windmill constructed in accordance with my invention; and

Figure 2, a horizontal section of the same corresponding to fig. 1. r i

Similar .letters of reference indicate corresponding parts in both figures.

This invention relates to that classof windmills known as the vertical kind', and

It consist-s' in the novel arrangement o f a number of piroted vaues at the outer ends of a series of arms secured upon a vertical shaft; and

It further consists in a novel device for catching that portion ot the wind which would pass close by thc vanes without acting on the same, and throw it onto said vanes, thereby increasing the velocity of the wheel and its power.

To enable others skilled in the art toconstruct windmills in accordance with my invention, I will proceed to describe the same with reference to the drawing.

A is an upright frame, ef suflicient strength to carry the horizontal wheel, and wide enough to allow the same a free rotation.

In the middle of said frame a vertical. shaft, B, is placed, to rotate freely between the lower bearing a and the upper' bearing b.

These bearings are secured to'theupper and lower cross-beams A A' of the frame A, and may be constructed as usual. To the vertical shaft B, hubs O C C are rigidly fastened for the purpose of sustaining a'certain number of radiating arms D D, of equal length.

' The ends of said arms are all connected, and firmly` united by means of horizontal braces C C. and upright rods fl al.

Between and at the outer ends ofthe arms D D, one or more series of pivoted vanes E E are arranged, so that when they are iu a closed position, as shown on one sideof theI figures, they will present a concave surface to the action o f .the wind.

These vanes E E may be made of metal., canvas, or any other suitable material, and are connected with each other by means of-links, or any exible connection, as shown in the drawing, the last one of the vanes being connected to the. upright rod d, whereby said" vanes can be made to open only such a distance,

vas will prove to be most etlcient.

F is a swinging frame secured loosely to the vertical shaft B, around which it is allowed to turn.v

At one end of said frame and outside of the valles, but close to them, one or more sails, G-G, are spread between thenpper and lower part ofthe frame F, and secured to upright bars e e, at a proper angle, so as to throw wind passing outside of the Yanes EE upon y the same.

To counteract the pressure of the wind on the sails G G, and balance the frame F, a wind-trap, H, is established at the opposite end of the frame F.

This wind-trap consists 'of two sails, f j, being spread between the upper and lower-part of the frame F, and secured to three upright bars g g, in such a manner and at such an angle that theywill meet at one of the bars g, and forman abutmentrto the action l of .the wind.

To regulatethe amount of surface of the'. sails G G and ff, a mechanism, I I, as shown in the drawing, is provided to the under side of the frame F.

Now it will be seen that the action of the wind, from whatever direction-itfmay. come, will always beef the Same effect -on the'wheel, the frame F, accommodating itself to any change-of direction of the wind! 1 The connection of the vanes with each other and oueof the upright fixed rods d, in the manner-and for the purpose hereinbefore described, serves to enable the wind to act on more series of vanes at the same -t-irne than if they were disconnected, as is clearly shown in Iig. 2.

The arrow 1 shows the directionin which the wind is coming, and arrow 2, the direction. the. wheel is turning.

To transmit motion, a pulley, K, is mounted on the shaft B, or someother ordinary means provided. i

From the nature 'of its construetiomthis windmill is very much vadapted to be used as a transportable motor. What is here claimed, and desired to be secured by Letters Patent, is-

1. The connection of the vanes EE with each other and the upright rod (l, by means of links or other exible materials, substantially as `and for the purposes herein described. 2. The swinging frame F, sails- Gl G, and wind-trap H, substantially as and for the purpose herein set FRED. Haynes, HENRY PALMER. 

